• 제목/요약/키워드: colorfastness dry-cleaning

검색결과 46건 처리시간 0.02초

Lotus seedpods의 색소 특성과 견뢰도 분석 (Colorants Characteristics and Fastness Analysis of Lotus Seedpods)

  • 임지영;장정대
    • 한국의류산업학회지
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    • 제16권3호
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    • pp.492-498
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    • 2014
  • Lotus(Nelumbo nucifera gaertn) is intimate plant to many people that it has clean and noble characteristics despite growth in the mud. Especially Lotus seedpods, byproduct of lotus, are rich in oligometric procyanidins and could be a new source of procyanidins. Procyanidins, also known as condensed tannins, are a class of polyphenols. In other words lotus seedpod contains plenty of tannins. Commonly tannins colorants could increase adsorption and fastness properties in fabric dyeing. This study was made to investigate colorants characteristics of lotus seedpod and various colorfastness properties of dyed silk fabrics. The wavelength of maximum absorption of lotus seedpod solution appeared at 273.5 nm from UV-vis spectrophotometer. From the results of FT-IR spectra measurements, IR absorption band of lotus seedpod colorants appeared at $3415cm^{-1}$, $2900cm^{-1}$ and $1620cm^{-1}$ by tannin structure. And tannin ingredient contents was the highest at pH 9 and flavonoid at pH 11. Lotus seedpod colorants showed relatively good affinity at pH 3 on silk fabrics and optimum dyeing temperature and time for silk was for 50 min, at $80^{\circ}C$. K/s of Light fastness according to different washing method was the highest at process including ironing and ${\Delta}E$ was the lowest. All of fastness(Light rubbing laundering perspiration dry cleaning) showed excellent results over 4 or 4-5 grades.

무궁화 잎을 이용한 견직물의 천연염색에 관한 연구 (Natural Dyeing of Silk Fabrics with the Extract of Leaves of Rose of Sharon [Hibiscus syriacus L.])

  • 조임선;이정숙
    • 한국의류산업학회지
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    • 제19권4호
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    • pp.515-522
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    • 2017
  • The natural dyeing industry has been faced with increasing demands of constant needs for environmentally and body friendly clothing products among modern consumers. Natural dyeing has attracted attention as a next-generation technology in green textiles. Dyestuffs need to be diversified for technological development activation in order to meet the increasing demands for natural dyeing. This study extracted dyeing solutions from the leaves of the Rose of Sharon (the national flower of South Korea) and investigated its dyeing properties for the development of various natural dyestuffs. This study investigates the dyeability of silk fabrics with Rose of Sharon leaves extract. Optimal conditions for dyeing of silk fabrics with the extract of Rose of Sharon were $40^{\circ}C/80min$ and $90^{\circ}C/60min$ with 100% concentration. Looking at the results, it showed the best K/S value at pH3, Sn pre-mordanting and Fe post-mordanting. Color fastness to washing, dry cleaning, rubbing and perspiration was good at grade 4-5 or 4. However, light fastness was observed in grade 2. In aspect of functional property, it showed an excellent result of 90% deodorization rate. In addition, its proven functionalities (deodorant properties) will help to produce high value added environment-friendly products. Those findings demonstrate the possibilities of the Rose of Sharon as an environment-friendly dye.

생물자원 폐기물을 활용한 친환경 가죽염색(II): 전처리에 의한 돈피의 양파껍질 색소에 대한 염색성 향상 (Eco-friendly Leather Dyeing Using Biomass Wastes(II) : Improving the Dyeability of Pig Leather to Onion Skin Colorant by Pre-treatment)

  • 여영미;신윤숙
    • 한국염색가공학회지
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    • 제30권4호
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    • pp.294-303
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    • 2018
  • In this study, eco-friendly natural dyeing for pig leather was explored by using onion skin which is food waste. Sodium caseinate was used as a pre-treatment agent to improve dyeability of pig leather and its effect on dye uptake was investigated according to treatment concentration. Dye uptake of the pre-treated pig leather was increased by about two times compared to untreated one at 0.2% pre-treatment concentration. Onion skin colorant imparted YR color on pig leather. After mordanting, the color of pretreated/dyed pig leather was varied from brick-red to khaki shades. However, mordanting did not improved dye uptake of the pre-treated/dyed pig leather significantly. The color-fastnesses of un-mordanted samples to light, dry cleaning, rubbing were grades 3-4, 5, and 4, respectively, which is good enough to meet all Korean Standard for Fastness of leather products. After mordanting, the light fastness of pig leather was improved to 4, 4-5 grade. The efficacy of sodium caseinate as a pre-treatment agent for pig leather was verified by improved dye uptake and good colorfastness. And, the natural dyeing of pig leather using food waste would be a significant sustainable way in terms of eco-friendliness and reuse of biomass to reduce environmental pollution.

지속가능 천연염색을 이용한 한지직물의 색채공간 확장: 쪽염색과 복합염색을 중심으로 (Expansion of Color Space in Hanji Fabrics by Using Sustainable Natural Dyeing: Focused on Natural Indigo Dyeing and Combination Dyeing)

  • 손경희
    • 한국염색가공학회지
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    • 제35권2호
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    • pp.82-96
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    • 2023
  • The purpose of this study is to enhance the usability of hanji fabrics by expanding the color space of hanji fabrics. For the expression of various colors of hanji fabrics, single and combination dyeing were carried out using natural indigo(Niram, Polygonum tinctorium), marigold extract colorant, and madder extract colorant for three types of hanji fabrics with different fiber compositions(hanji, hanji/cotton, hanji/silk). The light, medium, and deep colors obtained through individual single dyeing were shown to be PB Munsell colors in the case of indigo dyeing, Y color for marigold dyeing, and R color for madder dyeing. For combination dyeing, indigo dyeing was first carried out under the conditions for light, medium, and deep colors, respectively, and marigold or madder dyeing was performed thereafter. Indigo and marigold combination dyeing produced PB, B, BG, G, and GY Munsell colors and indigo and madder combination dyeing produced PB, P, RP, and R Munsell colors. Overall, the color change of hanji/silk fabric was more diverse than that of hanji fabric and hanji/cotton fabric. In the indigo, marigold, and madder combination dyeing into individual deep colors, blackish PB and P Munsell colors was obtained. Colorfastness to washing, dry cleaning, rubbing, and light were relatively good with above rating 4. Finally, 9 colors excluding YR color out of 10 Munsell color were obtained. We confirmed that the expansion of the color space of Hanji fabrics by the single and combination dyeing with indigo, marigold, and madder.

Parmotrema austrosinence(지의류)를 이용한 직물염색과 키토산 처리에 의한 염색성 향상 (Fabric Dyeing with Lichen Parmotrema austrosinence and Improvement of Dyeability by Chitosan Treatment)

  • 유혜자;이혜자;이전숙
    • 한국의류학회지
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    • 제32권6호
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    • pp.882-889
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    • 2008
  • 국내에서 자라는 지의류의 한 종류인 Parmotrema austrosinence를 채취하여 염액을 제조하고, 제조된 염액을 사용하여 견직물, 나일론직물과 면직물을 염색하였다. Parmotrema austrosinence를 암모니아수에 넣고 발효시켜 얻은 염액을 사용하여 pH를 4, 7, 10으로, 염색온도를 $30^{\circ}C$, 50^{\circ}C$, $80^{\circ}C$로 각각 조절한 후 염색을 하였다. 면직물은 견직물과 나일론직물에 비해 염색성이 낮게 나타났다. 면직물의 염색성 향상을 위해 키토산 액으로 처리하고 염색성과 염색견뢰도의 변화를 검토하였다. 염색된 시료들의 염색성은 K/S값, ${\Delta}E$와 Munsell값을 측정하여 평가하였다. 염색된 시료들의 K/S값은 견직물의 경우에는 520nm에서, 나일론직물과 면직물은 480nm에서 최대 흡광파장을 나타냈다. 견직물 염색포의 K/S값은 $4.6{\sim}9.3$으로 $1.0{\sim}2.7$인 나일론직물이나 $0.8{\sim}1.6$인 면직물에 비해 매우 높게 나타나 견직물이 Parmotrema austrosinence 염액에 대해 우수한 염색성을 가짐을 확인하였다. 염색온도가 높아질수록 먼셀 색상값이 red나 yellow red에서 yellow쪽으로 이동하는 색상변화가 나타났다. 견직물의 경우, 염색온도가 $50^{\circ}C$$80^{\circ}C$일 때의 염색성이 비슷하였으며, 다른 직물의 경우에는 염색온도 상승에 따라 K/S값도 높아졌다. 따라서 지의류를 사용한 적정 염색온도는 견직물의 경우 $50^{\circ}C$, 다른 직물의 경우 $80^{\circ}C$임을 확인하였다. 염색된 시료의 먼셀 색상은 견직물에서는 R(red) 영역에서, 나일론 직물에서는 YR(yellow red)-R 영역에서, 면직물은 YR 영역으로 나타났다. 면직물과 나일론직물은 중성 또는 산성염액에서 염색이 잘 되었고, 견직물의 경우는 중성 염액에서의 염색성이 가장 우수하였다. 염색성이 낮게 나타난 면직물은 키토산 가공에 의해 염색성과 염색견뢰도를 향상시킬 수 있음을 확인하였다 염색된 시료들의 일광견뢰도와 세탁견뢰도는 대체로 낮게 나타났으나 드라이크리닝 견뢰도는 4-5급 또는 5급으로 모두 우수하였다.

홍화의 홍색소 추출 용제의 종류에 따른 색상 변화 (Effect of Extraction Solvents on Color of the Dyed Fabrics with Safflower Red Colorants)

  • 손경희;신윤숙;류동일;최희;조아랑
    • 한국의류학회지
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    • 제32권3호
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    • pp.486-493
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    • 2008
  • 전통적인 알칼리 추출액인 콩대 잿물과 탄산칼륨수용액을 사용하여 홍색소를 추출하고 면, 마, 레이온, 견, 모, 그리고 나일론 직물에 염색하였다. 염색한 직물의 표면반사율과 염착량, 표면색을 측정하여 추출용제에 따른 차이를 비교 하였으며, 염색견뢰도를 평가하여 다음과 같은 결론을 얻었다. 1. 면, 마, 레이온, 그리고 견직물의 표면반사율 곡선은 추출용제에 따라 거의 같은 형태를 보였으며 최대흡수파장은 520nm에서 나타났다. 모와 나일론의 표면반사율 곡선형태는 추출용제간에 차이를 보였으며 최대흡수파장은 400nm에서 나타났다. 그리고 최대흡수파장 이외에 모는 520nm, 나일론은 540nm 파장부근에서 흡수대를 보였다. 2. 면, 마, 레이온, 견의 염착량은 잿물로 추출한 경우에 약간 더 높았으며, 모는 추출용매에 상관없이 비슷한 염착량을 보였고, 나일론은 탄산칼륨으로 추출한 경우에 약간 더 높게 나타났다. 3. 나일론 직물의 $L^{*}$값과 레이온의 $b^{*}$값을 제외하고는 탄산칼륨으로 추출하여 염색한 직물의 $L^{*},\;a^{*},\;b^{*}$, 그리고 $C^{*}$ 값이 잿물 추출에서 보다 더 높게 나타났다. 단 $a^{*},\;b^{*},\;C^{*}$ 값은 모와 나일론을 제외하고는 추출용제간의 차이가 매우 미비하였다. 잿물과 탄산칼륨 추출액으로 염색한 직물의 색차는 면, 견, 마, 레이온, 모직물, 그리고 나일론 순으로 크게 나타났다. 4. 잿물과 탄산칼륨수용액 추출에 의한 색상계열 차이는 나타나지 않았으며, 면, 레이온, 나일론은 RP계열, 마와 견은 R계열, 그리고 모는 YR계열로 나타났다. 나일론을 제외하고는 탄산칼륨수용액으로 추출한 경우에 더 밝고 선명한 색상으로 염색되었다. 5. 추출용제에 따른 세탁견뢰도에는 차이가 없었으며, 나일론, 레이온, 그리고 면과 마의 순으로 우수하였고 이염도 거의 나타나지 않았다. 견과 모의 드라이클리닝 견뢰도도 매우 우수하였다. 일광견뢰도도 추출용제에 따른 차이를 보이지 않았으나, 매우 낮게 나타났다. 6. 색상과 견뢰도 등에 큰 차이가 없으므로 전통적인 잿물 대신 탄산칼륨수용액을 추출용제로 사용하는 것이 색의 재현성이나 공정상의 측면에서 색의 표준화연구에 더 효율적인 방법이라 사료된다.